CaratHunter
Plans
Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG851606835

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851606835

Diamond specifications and retailer prices

From $328 SGD
As of November 4, 2026
Save $1,077 SGD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,405 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851606835 or 851606835. Listed at 13 retailers as of November 2, 2026, with prices from $328 to $1,405, a $1,077 spread on the same certified stone. MOH London lists it at $1,405. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851606835
Dimensions11.50 × 5.78 × 3.42 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.50 mm5.78 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851606835
Side View
Table 59.0%Crown 32.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,405 SGD|Low: $328 SGD|High: $1,413 SGD|Avg: $884 SGD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 4, 2026
Retailer 7$328 SGD
Retailer 3$392 SGD
Retailer 2$466 SGD
Retailer 11$598 SGD
Retailer 13$680 SGD
Retailer 6$856 SGD
Retailer 5$958 SGD
Retailer 10$996 SGD
Retailer 8$1,127 SGD
Retailer 9$1,130 SGD
Retailer 4$1,136 SGD
Retailer 12$1,207 SGD
MOH London$1,405 SGD

8 data points across 13 retailers

13 retailers$328 SGD to $1,405 SGD

A
Cheapest Retailer
-
$328 SGD
A
Retailer 2
-
$392 SGD
View
A
Retailer 3
-
$466 SGD
View
A
Retailer 4
-
$598 SGD
View
A
Retailer 5
-
$680 SGD
View
B+
Retailer 6
-
$856 SGD
View
Retailer 7
-
$958 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$996 SGD
View
B
Retailer 9
-
$1,127 SGD
View
B
Retailer 10
-
$1,130 SGD
View
B
Retailer 11
-
$1,136 SGD
View
B
Retailer 12
-
$1,207 SGD
View
Most Expensive
B
MOH London
LG851606835 · Nov 2
$1,405 SGD
£866 GBP
View
12 more retailers have this diamond
Prices start from $328 SGDSave up to $1,077 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.28ct Marquise
$328 SGD